
熊的食物: berry,bug,grass,fish 熊的动作:wake up,eat,find a den,sleep 可数名词的复数形式,例如: berry-berries,bug-bugs 动词的一般现在时第三人称单数形式,例如:eat-eats 动词的现在分词形式,例如: get-getting There be 句型,例如: There is also something special for the bearto eat. 现在进行时的用法,例如: Now the days are getting warm. 现在完成时的用法,例如: t hasn't eaten all winter